3-(Chloromethyl)-2-(difluoromethyl)-4-iodopyridine-5-acetonitrile
2-(Difluoromethyl)-6-methoxy-4-methylpyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-methoxy-5-nitropyridine-4-carboxaldehyde
2-(Difluoromethyl)-3-methoxy-6-methylpyridine-5-carboxaldehyde